DevFaqDisableAutoupdate

Can I disable Auto Update (for example, while running tests)?

The IDE often checks for updates on startup.
This behavior may not be desired in some cases;
for example, when running tests on the GUI,
because they can slow the application down or potentially change its behavior
from what you expected.
In order to prevent the Auto Update check,
run the application with the netbeans.full.hack system property set to true.
For example, use -J-Dnetbeans.full.hack=true on the command line.